Cat Articulated Truck Bare Chassis Application Guide

Transcription

1 Cat Articulated Truck Bare Chassis Application Guide

2 Table of Contents Definitions 3 Available Configurations 4 Long Rear-frame Solutions 5 Machine Weights 6-7 Machine Dimensions 8-9 Center of Gravity Hydraulic Specifications 12 General Welding Tips 13 Tire Options / Body Parts 14 ROPS / Turning Radius 15 Reference Material 16 2

3 Count on Caterpillar to provide a proven, high-performance and durable platform... while letting OEMs focus on their custom attachment expertise. Ranging from standard to long wheel base rear frames, Cat Articulated Truck (AT) Bare Chassis support a number of applications, such as large-volume coal or trash dump bodies, water tanks, fuel and lube trucks, and other unique machines requiring high mobility. Caterpillar works with Cat Dealers and OEMs to determine the best possible solutions for mounting a variety of implements and bodies onto the Cat AT bare chassis, providing the knowledge and support to assist with application and integration. These machines are available with and without hoist cylinders. Customer support is our focus. You can count on the Cat global distribution and support system wherever you, your machines or your customers are located. Cat Dealer service parts availability provides the quick turnaround customers expect. Caterpillar OEM Solutions Group can work with OEMs and Cat Dealers to provide application support for customers working with AT bare chassis. This work is included with new truck sales. On projects where a used chassis is involved, there may be a charge for engineering work done. OEM Solutions Group regional sales managers will assist dealers/customers in locating OEMs who can provide a variety of attachments and specialty bodies, thus providing customers with a full solution. Please contact your local OEM Solutions Group office for more information. Definitions AT: Articulated Truck AT Bare Chassis: Articulated Truck sold without a dump body OEM: Original Equipment Manufacturer AEM: Aftermarket Equipment Manufacturer CMOPS: Corporate Machine Order Processing System 3

4 Available Configurations ATs can be ordered with or without hoist cylinders and in standard wheel base (SWB) or long wheel base (LWB). These configurations are available through Caterpillar OEM Solutions Group, and are also available to Cat Dealers through the standard AT price lists and can be ordered through CMOPS. Standard Wheel Base Long Wheel Base Standard Wheel Base Long Wheel Base Base Model Payload Wheel Base Length Payload Wheel Base Length tonnes/tons mm/in tonnes/tons mm/in / / / / / / / / / / / / / / / /

5 Long Rear-frame Solutions for Cat AT Bare Chassis To address the challenges of payloads other than heaped dirt including applications such as water trucks, coal or trash dump bodies where the payload center of gravity tends to be pushed rearward, Caterpillar offers a longer rear frame as an option. These are called AT long wheel base (LWB) bare chassis machines, and they offer rear frames that are approximately 60 inches (1500 mm) longer than standard. This gives customers the best platform to install alternative attachments. OEM Solutions works with Cat Dealers, owners, users and OEMs to determine the best solutions for mounting a variety of implements and bodies onto the AT bare chassis. For more information, click here or contact your Cat Dealer or OEM Solutions account manager. Figure 1. Body, wheelbase and standard rear frame are designed for high-volume dirt-hauling applications. Figure 2. Installing a custom body that is longer than the typical dump body pushes the payload center of gravity rearward, adversely affecting steering, braking, mobility, ride and frame loading. Figure 3. Using a longer wheelbase rear frame addresses the payload center of gravity being shifted rearward and allows loading all axles to achieve maximum machine payload capability. 5

6 Machine Operating Weights The empty, maximum payloads and gross machine weights are listed below. Care must be taken when designing any attachment so that axle weight limits are not exceeded. Note that the payloads include anything added to the bare chassis, as well as the weight of all AEM attachments. 725 SWB with hoist Front Center Rear Total Empty , , , ,470 Rated Load , , , ,620 Loaded , , , , SWB no hoist Front Center Rear Total Empty , , , ,720 Rated Load , , , ,370 Loaded , , , , LWB with hoist Front Center Rear Total Empty , , , ,410 Rated Load , , , ,680 Loaded , , , , LWB no hoist Front Center Rear Total Empty , , , ,000 Rated Load , , , ,090 Loaded , , , , SWB with hoist Front Center Rear Total Empty , , , ,220 Rated Load , , , ,160 Loaded , , , , SWB no hoist Front Center Rear Total Empty , , , ,340 Rated Load , , , ,040 Loaded , , , , LWB with hoist Front Center Rear Total Empty , , , ,850 Rated Load , , , ,530 Loaded , , , , LWB no hoist Front Center Rear Total Empty , , , ,520 Rated Load , , , ,860 Loaded , , , ,370 6

7 Machine Operating Weights (continued) 735 SWB with hoist Front Center Rear Total Empty , , , ,530 Rated Load , , , ,580 Loaded , , , , SWB no hoist Front Center Rear Total Empty , , , ,870 Rated Load , , , ,240 Loaded , , , , LWB with hoist Front Center Rear Total Empty , , , ,180 Rated Load , , , ,930 Loaded , , , , LWB no hoist Front Center Rear Total Empty , , , ,850 Rated Load , , , ,250 Loaded , , , , SWB with hoist Front Center Rear Total Empty , , , ,730 Rated Load , , , ,330 Loaded , , , , SWB no hoist Front Center Rear Total Empty , , , ,850 Rated Load , , , ,210 Loaded , , , , LWB with hoist Front Center Rear Total Empty , , , ,380 Rated Load , , , ,690 Loaded , , , , LWB no hoist Front Center Rear Total Empty , , , ,170 Rated Load , , , ,900 Loaded , , , ,060 7

8 Machine Dimensions 8

9 Machine Dimensions SWB LWB SWB LWB SWB LWB SWB LWB EJ Dim. Description mm ft mm ft mm ft mm ft mm ft mm ft mm ft mm ft mm ft A Exhaust stack B Top of cab C Clearance D Articulation joint to front axle E Front axle to bumper F Front axle to center axle G Center axle to rear axle H Rear axle to pivot pin center I Body clearance J Body clearance J1 Front body angle K Body guides L Hoist mount* NA NA M Hoist mount* NA NA N Top of frame rail N1 Top of frame angle O P Rear axle to pivot pin center Pivot pin to top of frame rail Q Tire radius R Oscillation center to pivot pin AA Machine length BB Tire clearance CC Pivot casting width DD Pivot bearing width EE Pivot pin to rear of frame FF Beam width GG Frame width HH Hoist mount* NA NA MM Mirror width NN Tire centerline OO Fender width PP Free width of tire QQ Tire bulge UU Body width VV Body pivot clearance WW Axle oscillation tire clearance XX Tire clearance *LWB machines ordered without hoist cylinders do not have frame hoist mounting 9

10 Center of Gravity 10

11 Center of Gravity WEIGHT X Y Z WEIGHT X Y Z 725 AT kg lb mm in mm in mm in 730 AT kg lb mm in mm in mm in Tractor , Tractor , Trailer , Trailer , AT , AT , Body , Body , Payload , Payload , Body & Payload , Body & Payload , SWB with hoist kg lb mm in mm in mm in 730 SWB with hoist kg lb mm in mm in mm in Tractor , Tractor , Trailer , Trailer , AT BC , AT BC , SWB no hoist kg lb mm in mm in mm in 730 SWB no hoist kg lb mm in mm in mm in Tractor , Tractor , Trailer , Trailer , AT BC , AT BC , LWB with hoist kg lb mm in mm in mm in 730 LWB with hoist kg lb mm in mm in mm in Tractor , Tractor , Trailer , Trailer , AT BC , AT BC , LWB no hoist kg lb mm in mm in mm in 730 LWB no hoist kg lb mm in mm in mm in Tractor , Tractor , Trailer , Trailer , AT BC , AT BC , AT kg lb mm in mm in mm in 740 AT kg lb mm in mm in mm in Tractor , Tractor , Trailer , Trailer , AT , AT , Body , Body , Payload , Payload , Body & Payload , Body & Payload , SWB with hoist kg lb mm in mm in mm in 740 SWB with hoist kg lb mm in mm in mm in Tractor , Tractor , Trailer , Trailer , AT BC , AT BC , SWB no hoist kg lb mm in mm in mm in 740 SWB no hoist kg lb mm in mm in mm in Tractor , Tractor , Trailer , Trailer , AT BC , AT BC , LWB with hoist kg lb mm in mm in mm in 740 LWB with hoist kg lb mm in mm in mm in Tractor , Tractor , Trailer , Trailer , AT BC , AT BC , LWB no hoist kg lb mm in mm in mm in 740 LWB no hoist kg lb mm in mm in mm in Tractor , Tractor , Trailer , Trailer , AT BC , AT BC , Notes: All weights are unloaded machine, full of fluids, without an operator All dimensions are from the center of the oscilation and articulation joint Tractor the machine weight in front of the articulation joint Trailer the machine weight behind the articulation joint AT weight of a complete articulated truck with the standard dirt dump body AT BC weight of the AT Bare Chassis without body or payload 11

12 Hydraulic Specifications Many applications will require hydraulic power. The easiest source of hydraulic power on AT bare chassis is to use the hoist circuit. All bare chassis, whether equipped with hoist cylinders or not, will come with the hoist control lever in the cab, the hoist control valve, and hydraulic line to the manifold block on the back side of the articulation joint. On 735 and 740 machines, the hoist oil is also used for brake cooling. To prevent brake-heating issues, the hoist oil must be returned to the hoist valve and not returned to tank. Hoist Cylinder Specifications Part Number Bore Diameter mm 4.5 in 127 mm 5 in 127 mm 5 in mm 5.5 in Rod Diameter 76.2 mm 3 in 76.2 mm 3 in 88.9 mm 3.5 in 88.9 mm 3.5 in Stroke 2332 mm 91.8 in 2332 mm 91.8 in 2420 mm 95.3 in 2411 mm 95.3 in Pin-to-Pin Length Closed 2837 mm in 2837 mm in 2925 mm in 2925 mm in Open 5169 mm in 5169 mm in 5345 mm in 5336 mm in Port Size SAE 12 SAE 12 SAE 16 SAE 16 Pin Size mm 2.3 in mm 2.3 in mm 2.3 in mm 2.3 in Hoist Circuit Specifications Relief Pressure Up kpa 3,000 psi kpa 3,000 psi kpa 3,260 psi kpa 3,260 psi Down 6900 kpa 1,000 psi 6900 kpa 1,000 psi 6900 kpa 1,000 psi 6900 kpa 1,000 psi Pump L/min 79 GPM 298 L/min 79 GPM 323 L/min 85 GPM 386 L/min 85 GPM Pump 700 rpm 134 L/min 35 GPM 134 L/min 35 GPM Pump Type Variable Displacement Fixed Displacement Tank Volume 100 L 26 Gal 100 L 26 Gal 225 L 59 Gal 225 L 59 Gal There are additional pump drive locations available on the 725 and 730 ATs. For locations and specification of these drives, contact OEM Solutions. On the 735 and 740, there are no open pump-mounting locations available. For custom hydraulic information, including electronic controls (levers, switches and software), valves and pumps, contact OEM Solutions. 12

13 General AT Bare Chassis Welding Tips For the best, safest results on the rear AT machine frame: 1. Don t weld on the top and bottom surfaces of the frame rail. 2. Weld attachment on the sides of the frame as close as possible to the horizontal center line of the frame rail. 3. Keep a safe distance from the existing plate welded on the side of the frame rails (usually a stressed area already). 4. Weld parallel to the frame rails and not across the frame rail. Suggested Cat part numbers to use as reference for welded attachments For part illustrations and specifications, log onto This is a secure website. If you do not have access, contact your OEM Solutions Group representative. To attach large structures: To mount small structures and attachments: To secure tubes, hoses, wiring harnesses and other light components:

14 AT Tire Options There are a number of different tire options available for AT trucks. In some cases, tires not in the price list may be ordered and factory installed (availability may be limited and subject to change). For more information, contact your Caterpillar OEM Solutions Group representative. Available Body Parts The following Cat AT parts are frequently requested for use on AT-based custom machines. Contact OEM Solutions Group for assistance to identify Cat parts that complement and support OEM attachments. Part # Qty. Name Description Hoist Mounting BRACKET-HOIST LH Left-hand body hoist mounting casting BLOCK-HOIST RH Right-hand body hoist mounting casting Rubber Pads to 8 BUFFER-RUBBER body to frame pads to 24 SHIM 3 mm shim for body pads to 8 SHIM 8 mm shim for body pads Body Pivot Pins PIN AS.-DUMP pivot pins 5U SHIM shim for pivot pins BUSH pivot pin mounting spacer Body Guides GUIDE AS. 725 and 730 body guides PLATE AS.-GUIDE 735 left-hand body guide PLATE AS.-GUIDE 735 right-hand body guide PLATE AS.-GUIDE 740 body guides SHIM 3 mm shim for body guide SHIM 8 mm shim for body guide For part illustrations and specifications, log onto This is a secure website. If you do not have access, contact your OEM Solutions Group representative. 14

15 ROPS The AT ROPS is certified to the maximum weights listed below, per ISO 3471 Class 4. The ROPS weights for articulated trucks are based only on the tractor (forward of the articulation joint) weight. If any weight is added to the AT tractor portion, care must be taken to ensure that the ROPS weight is not exceeded. AT ROPS Limitations Based on ROPS Standard ISO 3471:1994 (Tractors) Model Weight Limit kg (33,387 lb) 730 & 730 EJ kg (33,387 lb) kg (35,493 lb) 740 & 740 EJ kg (35,493 lb) Turning Radius AT Long Wheel Base Turning Radius Model 725 LWB 730 LWB 735 LWB 740 LWB Tires 23.5R R R R25 Steer angle left/right SAE turning radius 9355 mm ft 9355 mm ft mm ft mm ft Clearance radius 9680 mm ft 9680 mm ft mm ft mm ft Inside radius 5196 mm ft 5196 mm ft 5660 mm ft 5710 mm ft Aisle width 6006 mm ft 6006 mm ft 6750 mm ft 6710 mm ft Note: For SWB turning radius, refer to specalog for standard AT with dump body. These specifications are available at 15

16 AT Bare Chassis Reference Material A wide range of AT bare chassis technical specifications and reference material is available on-line at including many of the media numbers listed here. Sales Model OEMSG Direct Mail OEMSG Sell Sheet Industry Brochure WEDQ1016 WEDQ1014 WEDQ1017 OMM SEBU7814 SEBU7815 For more information on Cat Bare Chassis Articulated Trucks, including service-related materials, contact your Cat Dealer or OEM Solutions representative. Materials and specifications are subject to change without notice. WEGQ Caterpillar All Rights Reserved Printed in USA CAT, CATERPILLAR, their respective logos, Caterpillar Yellow and the Power Edge trade dress, as well as corporate and product identity used herein, are trademarks of Caterpillar and may not be used without permission.